Colonel Christian P. Hald, M.D. was commissioned an Infantry Officer upon graduation from Officer Candidate School Class 27 on 3 July 1942. His first duty assignment was as Platoon Leader, Company H, 361st Infantry Regiment, 91st Division, Camp White, Oregon. | His subsequent duty assignments include: Executive Officer H/361, Camp White, Oregon; Company Commander, I/361 Inf, Camp White, Oregon; Medical Officer, 2/249 AAA, Ashland, Oregon; Brigade Surgeon, 41st Inf Bde Sep, Portland, Oregon; Company Commander, B/141 Support Bn, Portland, Oregon; Battalion Commander 1/186 Inf, Ashland, Oregon; Task Force Commander, EOH, ORANG, Portland, Oregon; G-1, Hq, or Mil Dept, Salem, Oregon; and Honorary Colonel, the 186th Infantry Regiment headquartered at Ashland, Oregon.